Calc Font Size Not Changing

My Calc sheets are randomly changing my font sizes and sometimes the font style. The most recent has done it every other line. It will not allow me to change my font size back to where I’d like it. This spreadsheet was originally an xlsx file - I opened it, made some changes then saved it as an ODS file. It saved correctly. After making several rounds of changes to the ODS version it has now started this behavior.

I have tried:
Changing my font of the whole sheet to Arial

Changing each individual cell’s font size and style

Resetting the cell font to another font style or size and then back to where I’d like it (whole sheet and individually)

Not sure where I’m going wrong here. Any suggestions?

What version of LibreOffice and operating system are you using?

What version of LibreOffice and operating system are you using?